Floor-drain and backwater trap.



W WEILBR FLOOR DRAIN AND BAGKWATBR TRAP.

- APPLIOATIOH FILED JUNE 25, 1908.

Patented Oct. 27, 1908.

I gitator attuned,

M M C WILLIAM WEILER, OF DAYTON, OHIO.

FLOOR-DRAIN AND BAGKWATER TRAP.

Specification of Letters Patent.

Patented. Oct. 27, 1 908.

Application filed June 25, 1908. Serial No. 440,267.

To all whom it may concern:

Be it known that 1, WILLIAM WEILER a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and use ful Improvements in Floor-Drain andBackwater Traps; and I do declare the following to be a full, clear, andexact descri tion of the invention, such as will enable 0t ers skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this s ecification.

This invention re ates to new and useful improvements in sewer traps,especially adapted for the drainage of floors, such for ex ample, ascellar floors usually constructed of cement or tiling.

The object of the invention is to provide a drainage trap which may becheaply manufactured, as it consists of comparatively few parts, thetrap proper consistlng of a single casting in which the valve andchambers are easily accessible when it is necessary to clean the same.

A further object of the invention is to rovide a trap of this character,access to W ich may be obtained without destroying or dam- 1aging thefloor, or damaging the floor in the east.

Preceding a detailed description of the invention, reference is made tothe accompanying drawings, of which-- Figure 1, is a longitudinalvertical sectional elevation of my improved drain trap. Fig. 2, is asectional view on the line a a of Fig. 1. Fig. 3, is a sectionalelevation of a portion of the sewer trap showing a modification in thevalve construction. Fig. 4, is a detached view of the fla valve shown inFig. 1. Fig. 5, is a sectiona view of Fig. 3, on the line b 1).

Throughout the specification, similar reference characters indicatecorresponding parts.

The basin portion 1, the trap or bend 4 and the discharge pipe 10leading to the sewer connection, consist of one integral casting whichis located below the cellar floor. The basin is inclosed by a cover 2 inthe form of a grid or perforated lid which lies flush with the floor andrests in a suitable shoulder at the mouth of the basin. It willtherefore be seen that this lid or cover 2 may be removed at willwithout breaking or interfering in any way with the floor. At one end ofthe basin there is an opening 3 which extends downwardly and thenceupwardly to form a water tra or seal in the bend of the pi e. The end ofthe pipe indicated by 5 is providied with a valve seat 6 upon whichrests a flap valve 7 of well-known type. This flap valve is supportedupon the upper portion of the trap pipe by means of a pivot 8 which maybe provided in any suitable manner. In the drawings, this flap valve isshown to lie directly under an opening in the bottom of the basin 1which is closed by a plug 9 which is removable by the hand when the lid2 is removed from the basin, thereby permitting access to be had to thevalve 7 whenever required.

The trap is accessible either through the entrance 3 or through theopening closed by the cap 9 and thus the necessity of breaking orremoving any portion of the floor is avoided.

Extending from the trap is a tubular extension 10 which connects withthe sewer pipe (not shown.) This pipe extension 10 is accessible for thepurposes of cleaning, through the opening closed by the cap 9. Thepassage from the trap to said extension 10 is controlled by the flapvalve 7, it being understood that when the seal in the trap rises aboveits normal level, the valve 7 is opened thereby to establish acommunication between the trap and the outlet pipe. The outlet pipe orextension 10 is provided with an opening shown to be closed by a cap 11,said opening being for the purposes of a vent pipe if it should bedesired to connect such pipe therewith.

I do not desire to limit myself to the flap valve 7 shown and described,as it will be apparent, other forms of valves may be employed, such forexample, as a ball valve. In Figs. 3 and 5, 12 indicatcs such ball valvewhich is constructed of suitable material and rests upon the valve seat6 which is of annular form with a suitable taper to accommodate thesurface of the ball. The opening in the forward end of the extension 10is made rectangular in order to provide oppositelydisposed tracks 13upon which the ball 12 may ascend when the valve is opened. It will beunderstood that the greater the amount of Water passing through thevalve, the higher will be the travel of the ball 12, and as a result,the opening will be enlarged proportionately. The opening 3 leading fromthe trap basin to the trap proper, is

screw-threaded and a plug may be inserted therein whenever the trap isout of service for any length of time, and thus it may be protected fromaccumulations of dust and other matter.

It will be understood the purposes of the water seal are to prevent backwater or sewer gas from entering the premises.

I claim:

A drain trap comprising a' basin, a bend extending therefrom and formingthe tra proper, one end of which communicates wit the basin, anoff-carrying tubular connection joining the basin and the other end ofthe trap, said basin, trap and tubular connection being integrallyjoined, a valve interposed between the discharge end of the trap and theoff-carrying extension, and an openin in the bottom of the basin abovesaid va ve and above the tubular connection, said opening being closedby a cap, and a cover for the basin, substantially as specified. Intestimony whereof I afliX my signature, in presence of two witnesses.

WILLIAM VVEILER. Witnesses:

MATTHEW SIEBLER, C. M. THEOBALD.

